Leer for annealing glassware.



PATENTED MAY 3, 1904.

C. A. DUNBAR. LEER FOR ANNEALING GLASSWARE.

APPLIOATION :FILEDv JAN. 14, 1902.

2 SHEETS-SHEET 1.

XO MODEL.

l IN Y\\\\\\\\\\\\\\| nfl? Mn/ess s No. 759,165. PATENTED MAY 3, 1904.C. A. DUNBAR. LEER POR ANNEALING GLASSWARE.

APPLIUATION FILED JAN. 14. 1902.

. N0 MODEL.

2 SHEETS--SHEBT 2.

Affornrys.

:Patenten May 3, 1904.

PATENT OEEICE.-

CLEMENT A. DUNBAR, OF DETROIT, MICHIGAN.

LEER FOR ANNEALING GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 759,165, dated May 3,1904.

Application filed Ianuary 14, 1902. Serial No. 89,708. (No model.)

To all LU/tom t may cm1/cern:

Be it known that I, CLEMENT A. DUNBAR, a citizen of the United States,residing at I)etroit, in the county of Wayne and State ot' Michigan,have invented certain new and useiul Improvements in Leers for AnnealingGlassware, of which the following is a speciiication, reference being'had therein to the aecompanying drawings.

The invention relates to feeding mechanism :for leers; and it consistsin devices for feeding glass articles from the outside of the leer intoa carrier which travels through the leer, and, further, in theconstruction of a reciprocating device comprising a glass-holder whichreceives the article, delivers it into the leer, and then releases itand withdraws therefrom, and in which the construction, combination, andarrangement of the various parts is hereinatter described, andparticularly pointed out in the claims.

In the drawings, Figure 1 is a vertical central section through a leer,showing my fecding-in mechanism in elevation and with a push-oit' insection. Fig. 2 is a perspective view of the feeding-in device and thepushoil', showing' the holder in position to receive the glass article.Fig. 3 is a front elevation thereof, showing the holder in position todeposit the article in the leer. Fig. 4 is a side elevation of the upperpart of Fig. 2. Fig. 5 is a section through the push-off, showing theholder in position to receive the glass article.

My feeding-in device is shown in connection with a horizontal leerformed of a horizontal tunnel or brickwork, or' which 26 is the roof. Ateach end of the tunnel is a well 38, in which are transverse shafts 41,carrying sprocket-wheels 40, over which runs an endless carrier 45,comprising a series of pans or plates upon which the articles are to beplaced. The carrier runs intermediate the wheels upon guideways 35 and36, being provided with suitable wheels 49, which rest upon the guidesin the leer. In the rootl of the tunnel is a recess 52, in which is agas-burner 53, having the jets so as to direct the flame through theleer and produce a slow traveling forward movement of the heat from theinlet to the outlet end, either without the use of a stack or throughdraft-producing devices. The inlet end of the leer is closed by a wall43. At the outlet end a detachable cover 56, which when removed exposesthe end of the carrier, from which the articles may be removed in anysuitable manner.

The particular construction oi the leer I do not herein claim as I havemade that the subject-matter of another application previously filed.

In the rootl of the leer is a feed-opening 25, and extending up fromthis is a casing 21, forming the well from the floor above to the leer.

In making tumblers, particularlypressed tumblers which come from thepress before they are perfectly set or hardened, it is desirable toshape the bottom, and as they are taken from the press they are set upona seat or table 2 beside the carrying-in device, the concave bottom ofthc tumbler resting upon a movable head 3, which is connected to theactuating-arm 4, pivoted in a bracket 5 upon a table or trame 6. rI`helever 4 has a suitable handle and an actuating-arm 7, which is connectedto the pusher 8. Lifting upon the hand-lever 4 moves the pusher 8laterally and at the saine time withdraws the head 3 and pushes thetumbler (marked 9) from its support into the two-part socket or holder10.

Each half of this socket is supported upon a vertical lever 11, theselevers being pivotcd upon the sliding head 12, having the guides 13,which slide upon the vertical guide-bar 14. The upper end of the levers11 have the inelines 15, between which engages the pin 16 on the bracket17, secured to the tripper-bar 18. These levers are held in their upperposition with the inelines 15 in contact with the pin 16 by means of acounter-weight 29, connected by a suitable rope or chain with the upperend of the head 12, as plainly shown in Fig. 1. When the article ispushed into the cup or receiving-socket 10, the head 12 is lowered by asuitable mechanism. I have shown an endless chain 19 in Fig. 1 with alinger 2O projecting into the path of the lower guide 13 of the head, sothat as the chain is moved it will move the head downward, lifting thecounterweight 29 and lowering the cup or receiving-socket 10 through thewell 21, arranged over the aperture 25 in the top of the leer-tunnel 26.When the socket 10, with its glass article, reaches its lowest point,the tripper-bar 18 strikes the stationary stop or bracket 27, and thehead continues its downward movement a short distance, while thetripper-bar remains stationary. This lowers the levers 11 in relation tothe pin 16 and also in relation to the pins 28 on the bracket 17 andwhich contact the outer faces of the inclines 15. This movement turnsthe levers 11 about their pivots, causing the lower ends to separate, asshown in Fig. 3, and to open the receiving socket or cup 10 and permitthe article therein to descend by gravity and be deposited upon the panof the leer, as illustrated in Fig. 3. By any suitable mechanism (notshown) the chain 19 may now be given a reverse movement, raising thefinger 2O and allowing the counter-weight to raise the head 12 with itslevers. When it reaches near the ktop of its movement, the tripper-bar18 strikes the stop or bracket 30 and rocks the levers 11 about theirpivots, closing the receiving-cup, as shown in Fig. 2.

I preferably arrange a series of Vthese feeding-in devices side by side,so that the operator may feed the articles to them successively, andthus have a continual feed for the articles into the leer. Any suitablemechanism (not shown) may be arranged for causing them to actsuccessively or together, as desired.

Heretofore it has been the usual practice to pile the glassware as itcomes from the press upon pans and to shove the pan into the end of theleer, which was continually open, and then by a hand-lever remove thecarrier a distance of a pan, and thus to gradually move the materialfrom one end of the leer to the other. So far as I am aware no deviceshave been heretofore used for feeding the glassware upon the carrierwhich is traveling through the leer, in this case the carrier beingactuated continuously by any suitable mechanism. (Not shown.) So far asI know I am also the first to feed a leer by mechanism through the roofthereof upon an endless carrier, as herein shown.

What I claim as my invention is- 1. In a machine of the characterdescribed, the combination of a carrier, of a feeding device for hollowglass articles comprising reciprocating devices, including aseveral-part socket for the reception of the articles, and

means for causing the parts of said socket to approach or recede.

2. In a machine of the character described, the combination with acarrier, of a sectional holder comprising a several-part socket forhollow glass articles, means for reciprocating said holder to and fromthe carrier and, for opening the socket to deposit the articles upon thecarrier and for maintaining the socket in its closed condition duringthe feeding movement. 1

3. In combination with a carrier, a reciprocating head, levers pivotedthereto, a sectional holder at the end of the levers, means for holdingthe sections together during the feeding movement, and automatic meansfor opening the holders to deposit the article upon the carrier.

4. The combination with a reciprocating head, of the levers 11 pivotedthereto and having sectional holders at the lower ends thereof, andinclines 15 at the upper ends of the same, and the actuating-pins 16 and28 coacting with said upper ends.

5. The combination with a reciprocating feeding device, of a table 2,the lever-1 pivoted thereto, the head 3 movably connected with the leverand projecting through the table, and a pusher 8 actuated by the lever.

6. In combination with a leer having an opening in one wall thereof, atraveling carrier in said leer a portion of which is in adjacence tosaid opening, and a device arranged' to be projected into and withdrawnfrom said opening to deposit the glassware upon the carrier.

7. In combination with a leer having an opening in its top wall, atraveling carrier in said leer a portion of which is at all times belowsaid opening, and a device arranged to shift in a substantially verticalplane into and out of said opening to deposit the glassware upon thecarrier.

8. In combination with a leer having an IOO opening in its top wall, ahoriZontally-dis- CLEMENT A. DUNBAR. Y

Witness es V M. B. ODoeHnnrY, I-I. C. SMITH.

